[v3,2/4] net/ice: fix memzone leak when re-configure the RX/TX queues
Checks
Commit Message
Normally when closing the device the queue memzone should be
freed. But the memzone will be not freed, when device setup
ops like:
rte_eth_bond_slave_remove
-->__eth_bond_slave_remove_lock_free
---->slave_remove
------>rte_eth_dev_internal_reset
-------->rte_eth_dev_rx_queue_config
---------->eth_dev_rx_queue_config
------------>ice_rx_queue_release
rte_eth_dev_close
-->ice_dev_close
---->ice_free_queues
------>ice_rx_queue_release
(not been called due to nb_rx_queues and nb_tx_queues are 0)
And when queue number is changed to small size, the BIG memzone
queue index will be lost. This will lead to a memory leak. So we
should release the memzone when releasing queues.
Fixes: 460d1679586e ("drivers/net: delete HW rings while freeing queues")
Cc: stable@dpdk.org
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
drivers/net/ice/ice_fdir_filter.c | 2 --
drivers/net/ice/ice_rxtx.c | 8 ++++++--
drivers/net/ice/ice_rxtx.h | 2 ++
3 files changed, 8 insertions(+), 4 deletions(-)
Comments
> -----Original Message-----
> From: Yunjian Wang <wangyunjian@huawei.com>
> Sent: Wednesday, September 22, 2021 21:29
> To: dev@dpdk.org
> Cc: Wang, Haiyue <haiyue.wang@intel.com>; Xing, Beilei <beilei.xing@intel.com>; Yang, Qiming
> <qiming.yang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; dingxiaoxiong@huawei.com; Yunjian Wang
> <wangyunjian@huawei.com>; stable@dpdk.org
> Subject: [dpdk-dev] [PATCH v3 2/4] net/ice: fix memzone leak when re-configure the RX/TX queues
>
> Normally when closing the device the queue memzone should be
> freed. But the memzone will be not freed, when device setup
> ops like:
>
> rte_eth_bond_slave_remove
> -->__eth_bond_slave_remove_lock_free
> ---->slave_remove
> ------>rte_eth_dev_internal_reset
> -------->rte_eth_dev_rx_queue_config
> ---------->eth_dev_rx_queue_config
> ------------>ice_rx_queue_release
> rte_eth_dev_close
> -->ice_dev_close
> ---->ice_free_queues
> ------>ice_rx_queue_release
> (not been called due to nb_rx_queues and nb_tx_queues are 0)
>
> And when queue number is changed to small size, the BIG memzone
> queue index will be lost. This will lead to a memory leak. So we
> should release the memzone when releasing queues.
>
> Fixes: 460d1679586e ("drivers/net: delete HW rings while freeing queues")
> Cc: stable@dpdk.org
>
> Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
> ---
> drivers/net/ice/ice_fdir_filter.c | 2 --
> drivers/net/ice/ice_rxtx.c | 8 ++++++--
> drivers/net/ice/ice_rxtx.h | 2 ++
> 3 files changed, 8 insertions(+), 4 deletions(-)
>
Acked-by: Haiyue Wang <haiyue.wang@intel.com>
> --
> 2.23.0
@@ -651,10 +651,8 @@ ice_fdir_teardown(struct ice_pf *pf)
ice_tx_queue_release(pf->fdir.txq);
pf->fdir.txq = NULL;
- rte_eth_dma_zone_free(eth_dev, "fdir_tx_ring", ICE_FDIR_QUEUE_ID);
ice_rx_queue_release(pf->fdir.rxq);
pf->fdir.rxq = NULL;
- rte_eth_dma_zone_free(eth_dev, "fdir_rx_ring", ICE_FDIR_QUEUE_ID);
ice_fdir_prof_rm_all(pf);
ice_fdir_prof_free(hw);
ice_release_vsi(vsi);
@@ -1135,6 +1135,7 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
return -ENOMEM;
}
+ rxq->mz = rz;
/* Zero all the descriptors in the ring. */
memset(rz->addr, 0, ring_size);
@@ -1190,6 +1191,7 @@ ice_rx_queue_release(void *rxq)
q->rx_rel_mbufs(q);
rte_free(q->sw_ring);
+ rte_memzone_free(q->mz);
rte_free(q);
}
@@ -1336,6 +1338,7 @@ ice_tx_queue_setup(struct rte_eth_dev *dev,
return -ENOMEM;
}
+ txq->mz = tz;
txq->nb_tx_desc = nb_desc;
txq->tx_rs_thresh = tx_rs_thresh;
txq->tx_free_thresh = tx_free_thresh;
@@ -1386,6 +1389,7 @@ ice_tx_queue_release(void *txq)
q->tx_rel_mbufs(q);
rte_free(q->sw_ring);
+ rte_memzone_free(q->mz);
rte_free(q);
}
@@ -2080,7 +2084,6 @@ ice_free_queues(struct rte_eth_dev *dev)
continue;
ice_rx_queue_release(dev->data->rx_queues[i]);
dev->data->rx_queues[i] = NULL;
- rte_eth_dma_zone_free(dev, "rx_ring", i);
}
dev->data->nb_rx_queues = 0;
@@ -2089,7 +2092,6 @@ ice_free_queues(struct rte_eth_dev *dev)
continue;
ice_tx_queue_release(dev->data->tx_queues[i]);
dev->data->tx_queues[i] = NULL;
- rte_eth_dma_zone_free(dev, "tx_ring", i);
}
dev->data->nb_tx_queues = 0;
}
@@ -2136,6 +2138,7 @@ ice_fdir_setup_tx_resources(struct ice_pf *pf)
return -ENOMEM;
}
+ txq->mz = tz;
txq->nb_tx_desc = ICE_FDIR_NUM_TX_DESC;
txq->queue_id = ICE_FDIR_QUEUE_ID;
txq->reg_idx = pf->fdir.fdir_vsi->base_queue;
@@ -2194,6 +2197,7 @@ ice_fdir_setup_rx_resources(struct ice_pf *pf)
return -ENOMEM;
}
+ rxq->mz = rz;
rxq->nb_rx_desc = ICE_FDIR_NUM_RX_DESC;
rxq->queue_id = ICE_FDIR_QUEUE_ID;
rxq->reg_idx = pf->fdir.fdir_vsi->base_queue;
@@ -89,6 +89,7 @@ struct ice_rx_queue {
ice_rxd_to_pkt_fields_t rxd_to_pkt_fields; /* handle FlexiMD by RXDID */
ice_rx_release_mbufs_t rx_rel_mbufs;
uint64_t offloads;
+ const struct rte_memzone *mz;
};
struct ice_tx_entry {
@@ -133,6 +134,7 @@ struct ice_tx_queue {
bool tx_deferred_start; /* don't start this queue in dev start */
bool q_set; /* indicate if tx queue has been configured */
ice_tx_release_mbufs_t tx_rel_mbufs;
+ const struct rte_memzone *mz;
};
/* Offload features */